With the Philips AVENT Natural variable flow nipple, you can adjust the flow rate by simply turning the bottle. The nipple features an innovative petal design for natural latch on similar to the breast, for easy combining breast and bottle.

Flow speed: variable flow. Month: 3+. Made of silicon.  BPA free.  Nipple helps to make bottle feeding more natural for your baby and you. The nipple features an innovative petal design for natural latch on similer to the breast, making it easy to combine breast and bottle feeding.